﻿344 
  ME. 
  T. 
  MELLAED 
  EEADE 
  ON 
  THE 
  [Aug. 
  1 
  89 
  7, 
  

  

  A 
  walk 
  of 
  about 
  a 
  mile 
  along 
  the 
  St. 
  Asaph 
  road 
  from 
  Abergele 
  

   shows 
  drift 
  banked 
  up 
  against 
  the 
  limestone-cliff 
  on 
  the 
  west 
  side 
  of 
  

   the 
  Yale 
  of 
  Clwyd 
  : 
  it 
  is 
  conterminous 
  with 
  that 
  of 
  the 
  shore-cliff's 
  

   just 
  described. 
  

  

  East 
  of 
  the 
  St. 
  Asaph 
  road, 
  and 
  at 
  a 
  level 
  of 
  about 
  140 
  feet 
  above 
  

   O.D., 
  is 
  a 
  disused 
  brick-pit, 
  showing 
  a 
  plastic 
  red 
  Boulder 
  Clay, 
  very 
  

   like 
  that 
  in 
  the 
  cutting 
  of 
  the 
  Wirral 
  Eailway 
  at 
  Seacombe. 
  1 
  In 
  

   it 
  are 
  a 
  good 
  many 
  shell-fragments, 
  mostly 
  very 
  rotten, 
  among 
  

   which 
  Cardium, 
  Turritella, 
  and 
  Tellina 
  are 
  distinguishable. 
  

  

  A 
  mechanical 
  analysis 
  of 
  this 
  clay 
  (No. 
  4 
  in 
  the 
  Map) 
  showed 
  

   that 
  the 
  matter 
  separated 
  by 
  the 
  sieves 
  was 
  mostly 
  sand, 
  the 
  larger 
  

   part 
  of 
  which 
  passed 
  the 
  y^-inch 
  mesh. 
  The 
  sand 
  consists 
  to 
  a 
  

   great 
  extent 
  of 
  most 
  beautifully 
  rounded 
  and 
  polished 
  quartz- 
  

   grains. 
  The 
  proportion 
  of 
  clay 
  was 
  very 
  high, 
  amounting 
  to 
  &2 
  

   per 
  cent. 
  

  

  Three 
  lbs. 
  of 
  this 
  clay 
  were 
  submitted 
  to 
  Mr. 
  Wright, 
  in 
  which 
  

   he 
  discovered 
  the 
  following 
  species 
  of 
  foraminifera 
  : 
  — 
  

  

  C.W. 
  Bulimina 
  pupoidcs, 
  d'Orb. 
  Eare. 
  

   C.W. 
  „ 
  marginata, 
  d'Orb. 
  Very 
  rare. 
  

  

  C.W. 
  Bolivina 
  dilatata, 
  Ess. 
  Eare. 
  

   C.W. 
  ,, 
  plicata, 
  d'Orb. 
  Frequent. 
  

  

  C.W. 
  Logena 
  lineala 
  (Will.). 
  Very 
  rare. 
  

   C.W. 
  ,, 
  hexagona 
  (Will.). 
  Very 
  rare. 
  

  

  Nodosaria 
  (JJ.) 
  communis, 
  d'Orb. 
  Very 
  rare. 
  

  

  C.W. 
  Globigcrina 
  bulloides, 
  d'Orb. 
  Frequent. 
  

  

  C.W. 
  Discorbina 
  rosacea 
  (d'Orb.). 
  Very 
  rare. 
  

   C. 
  ,, 
  Wright 
  ii, 
  Brady. 
  Eare. 
  

  

  C.W. 
  Truncatulina 
  lobatula 
  (W. 
  & 
  J.). 
  Eare. 
  

  

  C.W. 
  Nonionina 
  depressula 
  (W. 
  & 
  J.). 
  Very 
  common. 
  

  

  C.W. 
  ToJystomella 
  striato-punctata 
  (F. 
  & 
  M.). 
  Eare. 
  

  

  Ninety 
  specimens 
  of 
  Nonionina 
  depressula 
  were 
  obtained 
  from 
  

   this 
  gathering, 
  while 
  the 
  other 
  13 
  species 
  numbered 
  in 
  all 
  only 
  

   34 
  specimens. 
  

  

  On 
  the 
  east 
  side 
  of 
  the 
  St. 
  Asaph 
  road, 
  a 
  short 
  distance 
  up 
  the 
  

   road, 
  immediately 
  N.W. 
  of 
  Parc-y-Meirch, 
  is 
  a 
  limestone-quarry 
  

   about 
  280 
  feet 
  above 
  O.D., 
  and 
  it 
  is 
  seen 
  here 
  that 
  the 
  drift 
  runs 
  

   up 
  and 
  chokes 
  the 
  valley. 
  It 
  is 
  full 
  of 
  Wenlock 
  Shale, 
  mixed 
  with 
  

   limestone 
  and 
  much 
  rounded 
  shingle. 
  Following 
  the 
  valley 
  upwards, 
  

   it 
  is 
  evident 
  that 
  the 
  whole 
  is 
  drift-filled, 
  and 
  not 
  only 
  so, 
  but 
  the 
  

   drift 
  sweeps 
  over 
  the 
  hills, 
  giving 
  them 
  their 
  rounded 
  outlines. 
  

   Parc-y-Meirch 
  is 
  an 
  old 
  entrenched 
  camp 
  on 
  a 
  drift-covered 
  hill. 
  At 
  

   a 
  level 
  of 
  about 
  555 
  feet 
  above 
  O.D. 
  I 
  found 
  a 
  large 
  boulder 
  of 
  

   nodular 
  volcanic 
  ash, 
  which 
  looked 
  to 
  me 
  very 
  like 
  Arenig. 
  I 
  

   submitted 
  the 
  specimen 
  to 
  Mr. 
  Thomas 
  Ruddy, 
  of 
  Pale, 
  who 
  is 
  very 
  

   familiar 
  with 
  the 
  volcanic 
  rocks 
  in 
  this 
  part 
  of 
  North 
  Wales, 
  and 
  he 
  

   says 
  that 
  he 
  considers 
  it 
  to 
  be 
  the 
  nodular 
  ash 
  described 
  by 
  Ramsay 
  

   at 
  p. 
  93 
  in 
  vol. 
  iii. 
  Mem. 
  Geol. 
  Surv. 
  He 
  has 
  found 
  boulders 
  of 
  it 
  

   near 
  the 
  village 
  of 
  Cerrig-y-Druidion. 
  At 
  the 
  road 
  crossing 
  the 
  

  

  1 
  Davies 
  & 
  Eeade, 
  Proc. 
  Liverp. 
  Geol. 
  Soc, 
  Session 
  1894-95, 
  vol. 
  vii. 
  pt. 
  iii. 
  

  

  